Shimano EW-RS910 Di2 Internal Junction A Box imp flexible and lightweight TR90 frame

flexible and lightweight TR90 frame

and barrel nut combination that has proven strong over the years

256g (Small)

Whether it's your Carbon seatpost having a mind of its own or your Carbon stem is struggling to grip your handle bars

Shimano EW-RS910 Di2 Internal Junction A Box imp flexible and lightweight TR90 frameDesigned for use as a bar end on drop handlebars or with designated frames, the RS910 junction is a 2 port option for internal E TUBE wire routing, charging, battery monitoring, and shift mode switching. Specifications Built in type Junction A for specific frame or handlebar end Please check with manufacturer for compatibility Mfr Claimed Weight 11g